Given that HCF(306,657)=9, Find L.C.M.(306,657).

Given that HCF (306, 657)= 9, find LCM (306, 657).

Given that HCF (306,657) = 9, find LCM of (306,657).

Given that HCF (306, 1314) = 18. Find LCM (306, 1314).

In an AP: (i) Given a=5, d=3, a_(n) = 50 , find n and S_(n) (ii) given a=7, a_(13) = 35 , find d and S_(13) . (iii) given a_(12) = 37, d=3 , find a and S_(12) (iv) given a_(3) = 15, S_(10) = 125 , find d and a_(10) (v) given a=2, d= 8, S_(n) = 90 , find n and a_(n) (vi) given a_(n) = 4, d=2, S_(n) = - 14 , find n and a. (vii) given l=28, S= 144, and there are total 9 terms, find a.

In an AP: (i) given a=5, d=3, a_(n)=50 , find n and S_(n) . (ii) given a=7, a_(13)=35, find d and S_(13) (iii) given a_(12)=37, d=3 , find a and S_(12) (iv) given a_(3)=15, S_(10)=125 , find and a_(10) . (v) given d=5, S_(9)=75 and a and a_(9) . (vi) given a=2, d=8, S_(n)=90 , find n and a_(n) . (vii) given a=8, a_(n)=62, S_(n)=210 . find n and d. (viii) given a_(n)=4, d=2, S_(n) = -14, find n and a. (ix) given a_(n)=3, n=8, S_(n)=192, find d. (x) Given l=28, s=144 and there are total 9 terms find a.

Your are given three lenses L_(1), L_(2) and L_(3) each of focal length 20cm. An object is kept at 40cm in front of L_(1) as shown. The final real image is formed at the focus I of L_(3) . Find the separation between L_(1) and L_(2) and L_(3) .

Find the LCM and HCF of (1)/(2), (1)/(3)

Find the HCF and LCM of the pairs of integers and verify that LCM (a, b) xx HCF (a, b) = a xx b . (a) 16 and 80 (b) 125 and 55

In an AP : given d = 5, S_(9) = 75 , find a and a_(9) .

Is ** defined on the set {1,2,3,4,5} by a ** b =L.C.M. of a and b a binary operation ? Justify your answer.